Developed by Josephine C. Meyer, Gina Passante, Steven J. Pollock, Bethany R. Wilcox
| Purpose | To measure students' conceptual understanding of quantum computing fundamentals. |
|---|---|
| Format | Multiple-choice, Multiple-response |
| Duration | 20 min |
| Focus | Modern / Quantum Content knowledge (qubits, superposition, quantum gates, entanglement, quantum measurement, quantum circuit diagrams, math foundations of QIS) |
| Level | Graduate, Upper-level, Intermediate, Intro college |

more details
This is the second highest level of research validation, corresponding to at least 5 of the validation categories below.
Research Validation Summary
Based on Research Into:
- Student thinking
Studied Using:
- Student interviews
- Expert review
- Appropriate statistical analysis
Research Conducted:
- At multiple institutions
- By multiple research groups
- Peer-reviewed publication
The content on this instrument was based on a scope analysis, with feedback provided by instructor of QIS courses. The items were developed based on student difficulties in QIS and feedback from experts in the field and QIS instructors. Most items were initially given as free-response questions, with common student answers used to develop distractors for the final closed-form version. All items were tested in student interviews, and items were edited where necessary. Including all versions, the instrument has been pilot tested by approximately 2000 students at dozens of institutions across the country.
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The latest version of the QCCS, released in Spring 2025, is called v2.2 and has 20 questions. Since the previous version v2.1, six questions underwent minor wording changes and one item (Item 15) had an additional answer option added.



